Name Template: PUB/MISSION/level1b/gpsPor/YYYY.DDD/gpsPor_YYYY.DDD.HH.MM.UUUU.PP_SSSS.VVVV_sp3
DDDDay of year
LLLLEO id (1-999)
MISSIONMission ID (eight characters or less--champ, champrt, sacc, sacctst, etc)
NNdump number (1-99)
PPduration of orbit prediction (days)
PUBBase directory for the pub hierarchy
SSSSsubtype
UUUUduration (minutes)
VVVVversion
YYYYYear


Predicted GPS orbit specification file. Contains predicted GPS orbits two weeks ahead. Specified in SP3 format (see the SP3 format definition for details).